Kunshan Mingjue Engineering Machinery Co., Ltd
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Used Doosan DH220-7 Crawler Excavator 1.1m³ Bucket Capacity 108kw Rated Power Spot Good
Overview of this used Doosan DH220-9 excavator
This used Doosan DH220-7 crawler excavator is a high-performance flagship best-selling
model. This used hydraulic excavator adopts extensive research on cutting-edge excavator
technologies from Japan and the United States.
Display of components
Our maintenance focus on the most important components of a used Doosan DH220-7 crawler
excavator hydraulic excavator includes hydraulic pump, control valve and engine.
Low wear and less abrasions of this used Doosan DH220-7 hydraulic excavator could improve
the performance the become more efficient.
Excellent slewing device of this used middle size excavator can make it more flexible and stable
when moving and working.
The 98% new bucket and its teeth have been thickened and strengthed, which make it suitable
for various demands and working places.
We also support to provide the videos about any components of this used Doosan DH220-7
crawler excavator that you have concerns.
Product specification
|
Product type
| USED DOOSAN EXCAVATOR |
| Brand | Doosan |
| Model | DH220-7 |
| Engine type | Doosan DB58TI |
| Max excavation depth | 6660mm |
| Rated power |
108KW
|
|
Year
| 2022 |
If you are interested with this used hydraulic excavator, you are welcome to inquire to our staffs
online for more information and details that you want to know.
Product maintenance
This used track excavator is definitely a complex machines. But maintaining them doesn’t
have to be. Follow these suggestions in your Operation and Maintenance Manual, stick to a
routine maintenance schedule and perform a thorough walkaround inspection on
used excavators.
1. undercarriage
The undercarriage problems of the used crawler excavator can account for more than half of
your maintenance costs. It’s not just the most expensive part of your excavator — it’s also
exposed to near-constant wear and stress. Clean out any dirt and debris collected during a
shift to help prevent buildup that could accelerate wear. (It can also hurt fuel economy by
adding extra weight.) And perform a thorough inspection every shift to look for missing or
damaged components or uneven or excess wear.
2. tracks
Make sure your used hydraulic excavator’s tracks are set at the proper tension. They’ll wear
more quickly if they’re too tight or too loose. Chains and sprockets can also wear prematurely
if tracks aren’t maintained correctly. As you examine the tracks, keep an eye out for any wear
to the common track components - track shoes, pins, chains, idlers, sprockets and fasteners.
3. Filters
Filters keep your excavator’s engine, air, fuel and hydraulic systems running smoothly. Most
used track excavators come with an indicator that lets you know when filters need attention.
Act quickly when alerted to change filters to avoid the contamination that can lead to costly
damage and downtime.
4. water separator
If you leave your excavator outside overnight, condensation can cause water to build up in
the primary fuel filters. Used excavators come with water separators on these filters, and a
sensor inside the cab tells you when water has collected there. Drain it when indicated or it
can lead to corrosion and damage.
5. cooling system
Adequate airflow and coolant levels allow your used excavator excavator to run efficiently.
Both are especially important if you work in a very hot climate — you don’t want your machine
to overwork just to keep cool. Be sure to inspect coolant hoses for leaks. Also, apply low-pressure
water or air to clean the oil cooler, condenser and radiator. Reversing fans are a key feature
on these second hand excavators to help maintain a clean radiator.
6. Your used excavator’s work tools do the work — so don’t overlook them in your daily inspection.
Check any attachments, including couplers, for cracks, excessive wear or signs of damage
that could hamper your productivity and safety. Using a bucket? Inspect it for cracks, bowing,
pin and bushing wear. Look for abnormal wear to the adapters, teeth, cutting edges, and side
cutters. And make sure all work tools are securely attached to the machine for safety.